Filter element and control valve for a camshaft adjustment system

US8978697B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8978697-B2
Application numberUS-201113046983-A
CountryUS
Kind codeB2
Filing dateMar 14, 2011
Priority dateMar 18, 2010
Publication dateMar 17, 2015
Grant dateMar 17, 2015

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  2. Abstract

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  5. First independent claim

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Abstract

Official abstract text for this publication.

A filter element for a control valve of a camshaft adjuster. The filter element has an annular filter fabric for extracting particles, and a gripping frame for fastening the annular filter fabric. The gripping frame is designed here for the planar bracing of the annular filter fabric on the control valve. Furthermore, a control valve is disclosed for a camshaft adjuster with a corresponding filter element.

First claim

Opening claim text (preview).

The invention claimed is: 1. A filter element for a control valve of a camshaft adjuster, comprising: an annular filter fabric for extracting particles; and a retaining frame for fastening the filter fabric, the retaining frame being a gripping frame having a circumferential inner surface disposed radially outside of the annular filter fabric and configured for planar bracing of the annular filter fabric on a circumferential outer surface of the control valve, such that the annu…

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What does patent US8978697B2 cover?
A filter element for a control valve of a camshaft adjuster. The filter element has an annular filter fabric for extracting particles, and a gripping frame for fastening the annular filter fabric. The gripping frame is designed here for the planar bracing of the annular filter fabric on the control valve. Furthermore, a control valve is disclosed for a camshaft adjuster with a corresponding fil…
Who is the assignee on this patent?
Hoppe Jens, Konias Stefan, Schaeffler Technologies Gmbh
What technology area does this patent fall under?
Primary CPC classification B01D29/014. Mapped technology areas include Operations & Transport.
When was this patent published?
Publication date Tue Mar 17 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).